Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-16 13:34:30 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

maple_tree: calculate new_end when needed

Browse Source 
Patch series "Following cleanup after introduce mas_wr_store_type()", v2.

Patch 1 postpone new_end calculation when needed.
Patch 2 removes a unnecessary sanity check in mas_wr_slot_store().


This patch (of 2):

For wr_exact_fit/wr_new_root, we don't need to calculate new_end.

Let's postpone it until necessary.

Link: https://lkml.kernel.org/r/20241017015809.23392-1-richard.weiyang@gmail.com
Link: https://lkml.kernel.org/r/20241017015809.23392-2-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Wei Yang 2024-10-17 01:58:08 +00:00 committed by Andrew Morton
parent 0938b16146
commit 61e9df7085
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/maple_tree.c
View File

@ -4211,13 +4211,13 @@ static inline enum store_type mas_wr_store_type(struct ma_wr_state *wr_mas)
if (!wr_mas->entry)
mas_wr_extend_null(wr_mas);
new_end = mas_wr_new_end(wr_mas);
if ((wr_mas->r_min == mas->index) && (wr_mas->r_max == mas->last))
return wr_exact_fit;
if (unlikely(!mas->index && mas->last == ULONG_MAX))
return wr_new_root;
new_end = mas_wr_new_end(wr_mas);
/* Potential spanning rebalance collapsing a node */
if (new_end < mt_min_slots[wr_mas->type]) {
if (!mte_is_root(mas->node) && !(mas->mas_flags & MA_STATE_BULK))